10170521 divided by 442 
We want to divide 10170521 by 442.

Going ahead to step 1:
442 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 442

On to step 2:
The number 442 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 10 to get 10.
Fetch the next digit (1) from the dividend, attach it to 10 and continue: 101 / 442

Step 3:
442 can be fit into 101 0 times, resulting in a remainder of 101.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 101 leaves us with 101.
Take the next digit (7) from the dividend and append it to 101, then repeat: 1017 / 442

Step 4:
If we divide 1017 by 442, we get 2 and a remainder of 133.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 884 from 1017 leaves us with 133.
Bring next digit (0) of the dividend behind the 133 and repeat the process: 1330 / 442

Step 5:
The number 442 fits into 1330 3 times, leaving a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Subtract 1326 from 1330 to get 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 442

On to step 6:
442 goes into 45 0 times with a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 230.0
Subtracting 0 from 45 leaves us with 45.
Take the next digit (2) from the dividend and append it to 45, then repeat: 452 / 442

Moving on to step 7:
If we divide 452 by 442, we get 1 and a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 2301.0
If we take 442 away from 452, we end up with 10.
Fetch the next digit (1) from the dividend, attach it to 10 and continue: 101 / 442

Step 8:
The number 442 fits into 101 0 times, leaving a remainder of 101.
The next digit of our result is 0. 
Result so far: 23010.0
Subtracting 0 from 101 leaves us with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Step 9:
1010 divided by 442 is 2 with a remainder of 126.
The number 2 becomes the next digit in our result. 
Result so far: 23010.2
Deduct 884 from 1010 and we're left with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Going ahead to step 10:
When dividing 1260 by 442, we get 2 with a remainder of 376.
Record the quotient 2 as the next digit in the result. 
Result so far: 23010.22
Deduct 884 from 1260 and we're left with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

The final result is 23010.22 with a remainder of 0.376.